题目内容
听下面一段材料，回答第1-2题。
1. How old was probably the man when he got his PhD?
A. 18.
B. 26.
C. 28.
2. When did the man begin his research on the AIDS drug?
A. When he got a job in a lab.
B. When he was at night school.
C. When he worked at a company.
1. How old was probably the man when he got his PhD?
A. 18.
B. 26.
C. 28.
2. When did the man begin his research on the AIDS drug?
A. When he got a job in a lab.
B. When he was at night school.
C. When he worked at a company.
1-2: CC
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